cubrid_seq_drop
(PECL CUBRID >= 8.3.0)
cubrid_seq_drop — Delete an element from sequence type column using OID
説明
bool cubrid_seq_drop
( resource
$conn_identifier
, string $oid
, string $attr_name
, int $index
)The cubrid_seq_drop() function is used to delete an element you request from the given sequence type attribute in the database.
パラメータ
-
conn_identifier -
Connection identifier.
-
oid -
OID of the instance you want to work with.
-
attr_name -
Name of the attribute that you want to delete an element from.
-
index -
Index of the element that you want to delete (1-based).
返り値
TRUE, when process is successful.
FALSE, when process is unsuccessful.
例
例1 cubrid_seq_drop() example
<?php
$conn = cubrid_connect("localhost", 33000, "demodb", "dba");
@cubrid_execute($conn, "DROP TABLE foo");
cubrid_execute($conn, "CREATE TABLE foo(a int AUTO_INCREMENT, b set(int), c sequence(int), d char(10))");
cubrid_execute($conn, "INSERT INTO foo(a, b, c, d) VALUES(1, {1,2,3}, {11,22,33,333}, 'a')");
$req = cubrid_execute($conn, "SELECT * FROM foo", CUBRID_INCLUDE_OID);
cubrid_move_cursor($req, 1, CUBRID_CURSOR_FIRST);
$oid = cubrid_current_oid($req);
$attr = cubrid_col_get($conn, $oid, "c");
var_dump($attr);
cubrid_seq_drop($conn, $oid, "c", 4);
$attr = cubrid_col_get($conn, $oid, "c");
var_dump($attr);
cubrid_close_request($req);
cubrid_disconnect($conn);
?>
上の例の出力は以下となります。
array(4) {
[0]=>
string(2) "11"
[1]=>
string(2) "22"
[2]=>
string(2) "33"
[3]=>
string(3) "333"
}
array(3) {
[0]=>
string(2) "11"
[1]=>
string(2) "22"
[2]=>
string(2) "33"
}
参考
- cubrid_seq_insert() - Insert an element to a sequence type column using OID
- cubrid_seq_put() - Update the element value of sequence type column using OID
忘却曲線を使ってこの関数を確実に記憶に残す
